module main

// Note: This program, requires that the shared library was already compiled.
// To do so, run `v -d no_backtrace -o library -shared modules/library/library.v`
// before running this program.
import os
import dl
import dl.loader

type FNAdder = fn (int, int) int

const cfolder = os.dir(@FILE)
const default_paths = [
    os.join_path(cfolder, 'library${dl.dl_ext}'),
    os.join_path(cfolder, 'location1/library${dl.dl_ext}'),
    os.join_path(cfolder, 'location2/library${dl.dl_ext}'),
    os.join_path(cfolder, 'modules/library/library${dl.dl_ext}'),
]

fn main() {
    mut dl_loader := loader.get_or_create_dynamic_lib_loader(
        key:   cfolder + '/library'
        paths: default_paths
    )!
    defer {
        dl_loader.unregister()
    }
    sym := dl_loader.get_sym('add_1')!
    f := FNAdder(sym)
    eprintln('f: ${ptr_str(f)}')
    res := f(1, 2)
    eprintln('res: ${res}')
}